Samba nmbd messages in log

[Laurence Vanek]

I have a Samba server running on my small home network.  The home 
network is served off its own NIC (eth0).  A separate NIC (eth1) is 
connected thru cable modem to VOIP router.  The VOIP router appears to 
be doing NAT and serves up an address:

eth1      Link encap:Ethernet  HWaddr 00:04:75:73:91:0F 
          inet addr:192.168.15.100  Bcast:192.168.15.255  Mask:255.255.255.0
          inet6 addr: fe80::204:75ff:fe73:910f/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:303755 errors:0 dropped:0 overruns:0 frame:0
          TX packets:265877 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:326973694 (311.8 MiB)  TX bytes:41058862 (39.1 MiB)
          Interrupt:22 Base address:0x8000

My /var/log/messages file is filling with the following messages, every 
10-15 minutes:

==========

Apr 15 11:24:25 localhost nmbd[4279]: [2006/04/15 11:24:25, 0] 
nmbd/nmbd_browsesync.c:get_domain_master_name_node_status_fail(488)
Apr 15 11:24:25 localhost nmbd[4279]:   
get_domain_master_name_node_status_fail:
Apr 15 11:24:25 localhost nmbd[4279]:   Doing a node status request to 
the domain master browser at IP 192.168.15.100 failed.
Apr 15 11:24:25 localhost nmbd[4279]:   Cannot get workgroup name.
==========

I can see my shares on the network from a Windows XP client.  All seems 
well.  I have shared my linux box printer thru the printer share & it works.

My testparm file:

==========
[global]
        workgroup = MSHOME
        netbios name = SAMBA
        server string = Samba %v
        interfaces = eth0
        bind interfaces only = Yes
        guest account = lvanek
        passwd program = /usr/bin/passwd %u
        passwd chat = *New*UNIX*password* %n\n 
*ReType*new*UNIX*password* %n\n *passwd:*all*authentication*tokens*upda
ed*successfully*
        username map = /etc/samba/smbusers
        unix password sync = Yes
        log file = /var/log/samba/%m.log
        max log size = 50
        socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
        printcap name = /etc/printcap
        os level = 65
        preferred master = Yes
        domain master = Yes
        dns proxy = No
        wins support = Yes
        idmap uid = 16777216-33554431
        idmap gid = 16777216-33554431
        guest ok = Yes
        hosts allow = 192.168.1.
        cups options = raw

[homes]
        comment = Home Directories
        path = /home/lvanek
        valid users = lvanek
        read only = No
        directory mask = 0775
        hide dot files = No

[printers]
        comment = All Printers
        path = /var/spool/samba
        printable = Yes
        browseable = No

[tmp]
        comment = Temporary file space
        path = /tmp
        valid users = bvanek, lvanek
        read only = No
===============

My take on the log messages is that nmbd broadcasts to ALL interfaces 
even though I bind only to eth0 (home network NIC).  The IP address 
(192.168.15.100) is assigned by the VOIP router.

Any suggestions as to how I can quiet these?

As a side note, I am confused as to whether I need to call for Samba to 
be a domain master in a simple setup like this.  I appears as though I 
do.  Thoughts?